Journal ArticleDOI
Crystal packing control of a trifluoromethyl‐substituted furan/phenylene co‐oligomer
Alina A. Sonina,Igor P. Koskin,Peter S. Sherin,Tatyana V. Rybalova,Inna K. Shundrina,Evgeny A. Mostovich,Maxim S. Kazantsev +6 more
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TLDR
Terminal trifluoromethyl groups induce weak intermolecular interactions which control the crystal packing and optical properties of co-oligomer single crystals, which exhibit high photoluminescence efficiency and have optical properties which strongly depend on the crystalpacking.Abstract:
Furan/phenylene co-oligomer single crystals are considered as future materials for organic optoelectronics. Here, the effects of trifluoromethyl substituents on the crystallization, structure and optical properties of furan/phenylene co-oligomer 1,4-bis{5-[4-(trifluoromethyl)phenyl]furan-2-yl}benzene are studied systematically. The solution growth methods and physical vapor transport result in the formation of three polymorphs depending on the growth method and the solvent. Single-crystal X-ray analysis reveals the crystal structures to correspond to H-, J- or mixed aggregates. All obtained crystals exhibit high photoluminescence efficiency and have optical properties which strongly depend on the crystal packing. Variable-temperature X-ray powder diffraction analysis shows the thermal transition of two forms (H- and J-aggregates) into a third one (mixed aggregate). Terminal trifluoromethyl groups induce weak intermolecular interactions which control the crystal packing and optical properties of co-oligomer single crystals.read more
Citations
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Impact of terminal substituents on the electronic, vibrational and optical properties of thiophene–phenylene co-oligomers
Andrey Yu. Sosorev,Andrey Yu. Sosorev,Muzaffar K. Nuraliev,Elizaveta V. Feldman,Dmitry R. Maslennikov,Dmitry R. Maslennikov,Oleg V. Borshchev,Maxim S. Skorotetcky,Nikolay M. Surin,Maxim S. Kazantsev,Sergei A. Ponomarenko,Sergei A. Ponomarenko,Dmitry Yu. Paraschuk +12 more
TL;DR: The unraveled relationships between the structure and the properties of the substituted PTTPs should facilitate a rational design of π-conjugated (co-)oligomers for efficient organic optoelectronic devices.
Journal ArticleDOI
A large anisotropic plasticity of L -leucinium hydrogen maleate preserved at cryogenic temperatures
TL;DR: This work has shown that L-Leucinium hydrogen maleate crystals are very plastic at ambient conditions and at least down to 77 K, the first reported example of an organic compound remaining so plastic at cryogenic conditions.
Journal ArticleDOI
Selectively Fluorinated Furan-Phenylene Co-Oligomers Pave the Way to Bright Ambipolar Light-Emitting Electronic Devices
Igor P. Koskin,Christina S. Becker,Alina A. Sonina,V.A. Trukhanov,V.A. Trukhanov,Nikita A. Shumilov,Anatoly D. Kuimov,Yuliya S. Zhuravleva,Yuliya O. Kiseleva,Inna K. Shundrina,Peter S. Sherin,Dmitry Yu. Paraschuk,Dmitry Yu. Paraschuk,Maxim S. Kazantsev +13 more
Journal ArticleDOI
Highly luminescent crystals of a novel linear π-conjugated thiophene-phenylene co-oligomer with a benzothiadiazole fragment.
V. A. Postnikov,Nataliya I. Sorokina,A. A. Kulishov,M. S. Lyasnikova,V. V. Grebenev,Alexey E. Voloshin,Oleg V. Borshchev,Maxim S. Skorotetcky,Nikolay M. Surin,Evgeniya A. Svidchenko,Sergei A. Ponomarenko +10 more
TL;DR: The synthesis, growth from solutions and structure of crystals of a new linear thiophene-phenylene co-oligomer with a central benzothiadiazole fragment with a conjugated core, (TMS-2T-Ph)2-BTD, are presented.
Journal ArticleDOI
Alkyl-substituted bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophenes: weakening of intermolecular interactions and additive-assisted crystallization
Alina A. Sonina,Christina S. Becker,Anatoly D. Kuimov,Inna K. Shundrina,Vladislav Komarov,Maxim S. Kazantsev +5 more
TL;DR: In this paper, the authors introduced alkyl substituents in AIE-active bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophene and elucidated their effect on the molecular and crystal structures, crystallization and optical properties of materials.
References
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Organic Single Crystal Lasers: A Materials View
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Polymorphism as an emerging design strategy for high performance organic electronics
Hyunjoong Chung,Ying Diao +1 more
TL;DR: In this article, the relationship between molecular packing and charge transport is unequivocally established since the chemical structures are identical amongst polymorphs, leaving molecular packing as the only variable in the case of packing polymorphism.
Journal ArticleDOI
Regulation of π-Stacked Anthracene Arrangement for Fluorescence Modulation of Organic Solid from Monomer to Excited Oligomer Emission
Tomoaki Hinoue,Yuta Shigenoi,Misa Sugino,Yuji Mizobe,Ichiro Hisaki,Mikiji Miyata,Norimitsu Tohnai,Norimitsu Tohnai +7 more
TL;DR: The construction and precise control of the face-to-face π-stacked arrangements of anthracene fluorophores in the crystalline state led to a remarkable red shift in the fluorescence spectrum due to unprecedented excited oligomer formation.